Still Life Synthesis Thread

[MathAndCode]

Immediate further improvement:

I played around with the result and found a few slow components. They may or may not be known.

Code: Select all

x = 180, y = 30, rule = B3/S23
93bo$13bo78bo82bo$2b2o8bo79b3o79bo$bo2bo7b3o159b3o$b2obo$4b3o$b2o4bo69b
2o$o2b4o69bo2bo79b2o$bo74b2obo78bo2bo$2b3o74b3o76b2obo$4bo71b2o4bo78b
3o$75bo2b4o76b2o4bo$76bo80bo2b4o$10b2o65b3o78bo$9b2o68bo79b3o$11bo149b
o2$2b2o$3b2o$2bo92b2o$95bobo79b2o$95bo81bobo$90b2o85bo$89b2o81b2o$91b
o79b2o$173bo2$154b2o$155b2o$154bo!

I also found a partial that I couldn't figure out how to stabilize.

Code: Select all

x = 22, y = 29, rule = B3/S23
15bo$13bobo$14b2o2$18bo$18bobo$18b2o3$2b2o$bo2bo$b2obo$4b3o$b2o4bo11b
2o$o2b4o12bobo$bo17bo$2b3o$4bo9$17bo$16b2o$16bobo!

By the way, do you want the base that I told you about?



Edit: Unrelatedly, here's a modification of the xs25_39u0o4czw12ldzw65 synthesis that I made a while back:

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x = 41, y = 44, rule = B3/S23
12bo27bo$10bobo25b2o$11b2o26b2o3$37bo$35b2o$36b2o6$bo14bo$2bo11b2o$3o
12b2o2$27b2o$16bo10bobo$16b2o10bo$15bobo2$21b2o$21b2o7$35b2o$34b2o$36b
o3$16bobo$17b2o$17bo$27bo$25b2o$26b2o$17b2o$16bobo$18bo!

I think that there are one or two other syntheses that can be modified in the same way.



Another edit: Yes indeed.

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x = 171, y = 300, rule = B3/S23
5bo124bo$6b2o123b2o$5b2o22bobo98b2o22bobo$29b2o123b2o$30bo124bo3$37bo
124bo$35b2o123b2o$22bo13b2o109bo13b2o$20bobo122bobo$21b2o4b3o116b2o4b
3o$27bo124bo$28bo124bo$126bo$bo14bo107bobo14bo$2bo11b2o109b2o12b2o$3o
12b2o123b2o2$27b2o123b2o$16bo10bobo111bo10bobo$16b2o10bo112b2o10bo$15b
obo122bobo2$21b2o123b2o$21b2o123b2o7$35b2o123b2o$34b2o123b2o$36bo124b
o3$16bobo113bo$17b2o113b2o$17bo113bobo$27bo100bo$25b2o101b2o26b2o$26b
2o99bobo26bobo$17b2o137bo$16bobo$18bo113b2o$133b2o$132bo24bo$156b2o$156b
obo96$4bobo6bo115bobo6bo$5b2o7b2o114b2o7b2o$5bo7b2o22bobo90bo7b2o22bo
bo$37b2o123b2o$38bo124bo3$45bo124bo$13bo29b2o93bo29b2o$11bobo16bo13b2o
90bobo16bo13b2o$12b2o14bobo106b2o14bobo$29b2o4b3o116b2o4b3o$35bo124bo
$36bo124bo$134bo$9bo14bo107bobo14bo$10bo11b2o109b2o12b2o$8b3o4b2o6b2o
115b2o6b2o$14bobo122bobo$16bo18b2o104bo18b2o$24bo10bobo111bo10bobo$24b
2o10bo112b2o10bo$23bobo122bobo2$29b2o123b2o$29b2o123b2o7$43b2o123b2o$
42b2o123b2o$44bo124bo3$24bobo113bo$25b2o113b2o$25bo113bobo$35bo100bo$
33b2o101b2o26b2o$34b2o99bobo26bobo$25b2o137bo$24bobo$26bo113b2o$141b2o
$140bo24bo$164b2o$164bobo83$22bo124bo$23bo124bo$21b3o122b3o3$26b2ob2o
120b2ob2o$26b2ob2o120b2ob2o$31b2o123b2o$31b2o123b2o2$26b2o3b2o118b2o3b
2o$26bobobo2bo117bobobo2bo$28bobob2o119bobob2o$27b2obo121b2obo$28bobo
122bobo$28bob2o121bob2o$29bo124bo$30b2o123b2o$31bo124bo$29bo125bo$29b
2o123bo$153bo$153b2o!

Also, it might be possible to stabilize these:

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x = 163, y = 50, rule = B3/S23
5bo124bo$6b2o123b2o$5b2o22bobo98b2o22bobo$29b2o123b2o$30bo124bo3$37bo
124bo$35b2o123b2o$5bo16bo13b2o92bo16bo13b2o$3bobo14bobo105bobo14bobo$
4b2o15b2o4b3o99b2o15b2o4b3o$27bo124bo$28bo124bo$126bo$bo14bo107bobo14b
o$2bo11b2o109b2o12b2o$3o4b2o6b2o115b2o6b2o$6bobo122bobo$8bo18b2o104bo
18b2o$16bo10bobo111bo10bobo$16b2o10bo112b2o10bo$15bobo122bobo2$21b2o123b
2o$21b2o123b2o7$35b2o123b2o$34b2o123b2o$36bo124bo3$16bobo113bo$17b2o113b
2o$17bo113bobo$27bo100bo$25b2o101b2o26b2o$26b2o99bobo26bobo$17b2o137b
o$16bobo$18bo113b2o$133b2o$132bo24bo$156b2o$156bobo!

Yet another edit: Some of them work with the add bridge fishhook and add bridge elevener components.

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x = 212, y = 310, rule = B3/S23
183bo27bo$18bo27bo134bobo25b2o$16bobo25b2o136b2o26b2o$17b2o26b2o2$208b
o$43bo162b2o$41b2o164b2o$42b2o5$187bo$22bo162b2o$20b2o151bobo10b2o$8b
obo10b2o151b2o$9b2o163bo23b2o$9bo23b2o152bo10bobo$22bo10bobo136bo14b2o
10bo$7bo14b2o10bo135bobo13bobo$5bobo13bobo147b2o$6b2o184b2o$27b2o163b
2o$27b2o6$206b2o$41b2o162b2o$40b2o165bo$42bo2$202bo$37bo163b2o$36b2o163b
obo$36bobo$173bo$8bo164b2o4b3o$8b2o4b3o155bobo6bo$7bobo6bo163bo$15bo$
b2o$obo$2bo6$166b2o$165bobo$167bo102$179bo$14bo165b2o$15b2o162b2o22bo
bo$14b2o22bobo162b2o$38b2o164bo$39bo2$211bo$46bo162b2o$44b2o150bo13b2o
$31bo13b2o147bobo$29bobo163b2o4b3o$30b2o4b3o162bo$36bo165bo$37bo$190b
o$25bo162b2o$23b2o151bobo10b2o$11bobo10b2o151b2o$12b2o163bo23b2o$12bo
23b2o152bo10bobo$25bo10bobo136bo14b2o10bo$10bo14b2o10bo135bobo13bobo$
8bobo13bobo147b2o$9b2o184b2o$30b2o163b2o$30b2o6$209b2o$44b2o162b2o$43b
2o165bo$45bo2$205bo$40bo163b2o$39b2o163bobo$39bobo$176bo$11bo164b2o4b
3o$11b2o4b3o155bobo6bo$10bobo6bo163bo$18bo$4b2o$3bobo$5bo6$169b2o$168b
obo$170bo76$195bo$30bo163bo$29bo164b3o$29b3o3$190b2o$25b2o163b2o$25b2o
$185b2o3b2o$20b2o3b2o158bobobo2bo$20bobobo2bo159bobob2o$22bobob2o158b
2obo$21b2obo162bobo$22bobo162bob2o$22bob2o162bo$23bo165b2o$24b2o164bo
$25bo161b3o$22b3o162bo$22bo162bobo$185b2o!

[wwei47]

Is this known?

Code: Select all

x = 16, y = 11, rule = B3/S23
5b2o6bobo$4bo2bo5b2o$5b2o7bo2$3o5$2b2o$2b2o!

EDIT: It's a 1G seed for a bun on block and snake.
Edit 2: Why am I using ikpx2_stdin out of all things to look for still lives? Three other still lives:

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x = 644, y = 74, rule = B3/S23
604b3o$604b3o$603bobo$604b2o$600b6o$600b5o2$605b2o$605b3o2b2o$607bobo
2bo$4b2o229bo369bo$3bo2bo227bobo368bo$2b2obo227bo376b3o4bo$2b2o229bo
378b2o2bobo$2o229bo4bo376bo$obo227bo381b2o2b4o$obo227bo4bo376bo2bob2o$
4bo226b5o382b2o$5bo229bobo375bo5bobo$5bob2o2bo223bob2ob2o371bobobo3b3o
$4b2o3b2obo222bob2ob2o372b3o3b2o2b2o$5b4o2b2o223bo378b3o5b3o$12b2o227b
o375bo$13b3obo223b3o3bo367bo7bo$14bobobo224bo3bo368bo5b3o$11b2obo229bo
bo2bo372b3o$11b2obo2bobo222b3obo2bo373b2o$11b2ob2o226b2o$12bo2bob3o
227bob2o373b3o$12bo8b2o221bo4bobo373b2o$13bobo5b3o219bobo7b2o370b2o$
21bo2bo225b2o3bo$14b2o6b2o220bo2bo5bobo371bo$15bobo3b2o222bobo5bo373bo
$16bo4b2o223bo5b3o371bobo$625b2o$23b2o230bo369bo2bo$252bobo369bo3bo$
23bobo227bo370bobobo3b2o$24bo229bobo368b2obo2b2o$26bo230bo368b2o$26bo
228b2o375bo$256bo372b4o$26bo601bo5bo$25b3o228b3o369bobo3bo$25b3o227b2o
372bo$255b2o373bo2bo$23bobo2bo2bo222b4o373b3o$25bobo4bo221bo3b2o373bob
o$23b2obo5bo221bobob2ob3o369bo2bo$25b2o3bo227bo2b3o$25bo4bo224b3o3b2o
370bob2o$26bo2b3o602bo$32bo227b3o$27b2obo2bo226b2o2bo366bobo$27b2o3bo
229bo2bobo2bo360bo2b4o$28b3o231bo2bobobobo359bobo2bo$28b2obo235bo3bo
367bo$30b2o236b2o365b2o2bo$30b2o2b2o232bo5b2o357bo6b3o$32bobo232bobob
3o2bo355bo4bo3b3o$32b2o233bo3b2o359bo4bo4bo$35bo231bo9bo355b5obob3o$
36bo232b2o3bob3o356bo3bob2o$31bo10b2o224b2o4b2o2b3o360bo$31b2o2b5obo
230bo6bo357b2o$30bo5b2obo4b2o225bobobobo359b2o$31bo241bobo$36b3o5b2o
226b3obo$39bo3b2o230bo$40bo2bo230bo$39bo$39bobo$40bo!

[May13]

Is it possible to complete this synthesis of xs22_255m88gz8kkd221 using 2G or 3G collision?
This synthesis is needed to reduce glider cost of the Turtle.
Before generation 37:

Code: Select all

x = 26, y = 21, rule = LifeHistory
21.A$20.A$20.3A8$6.A$6.2A$5.A.A3.A$10.2A$6.D3.A.A$6.D$3.D.D17.3A$4.D
18.A$.2A12.3A6.A$A.A12.A$2.A13.A!
[[ STOP 37 ]]

After:

Code: Select all

x = 26, y = 21, rule = LifeHistory
21.B$20.3B$19.4B$18.4B$17.4B$16.4B$15.4B$14.A3B$6.2B5.ABAB$6.4B3.ABA
3B$5.8B.A2.3B$5.9B3.4B$5.8B2A3.4B$5.6B2ABA4.4B$5.BC3BA3BA5.4B$4.2BC2B
3ABA2B5.4B$3.CBCB.6A2B6.4B$2.2BC2B.BA2BA4B6.3B$.4B4.A4BA3B6.B$4B5.BA
3BA3B$.2B8.3A2.B!

[MathAndCode]

Is it possible to complete this synthesis of xs22_255m88gz8kkd221 using 2G or 3G collision?

It's probably possible to edgeshoot that loaf predecessor or a similar one in a compatible way. I'll look at the loaf syntheses.



Edit: I found a suitable three-glider collision.

Code: Select all

x = 35, y = 28, rule = B3/S23
30bo$29bo$29b3o3$5bo$6b2o$5b2o3$15bo$15b2o$14bobo3bo$19b2o$19bobo2$32b
3o$32bo$10b2o12b3o6bo$9bobo12bo$4b3o4bo13bo$6bo$5bo3$3o$2bo$bo!

Another edit: There's an applicable fast component (although it probably isn't relevant to the turtle synthesis).

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x = 35, y = 38, rule = B3/S23
30bo$29bo$29b3o3$5bo$6b2o$5b2o3$15bo$15b2o$14bobo3bo$19b2o$19bobo2$32b
3o$32bo$10b2o12b3o6bo$9bobo12bo$4b3o4bo13bo$6bo$5bo3$3o$2bo$bo6$4b2o$
3bobo$5bo20b3o$26bo$27bo!

Yet another edit: The beehive can be replaced by a single glider.

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x = 134, y = 39, rule = B3/S23
131bobo$32bobo96b2o$32b2o98bo$33bo3$104bo$5bo99b2o$6b2o96b2o$5b2o2$114b
o$15bo98b2o$15b2o96bobo3bo$14bobo3bo97b2o$19b2o97bobo$19bobo3$109b2o12b
3o$10b2o12b3o81bobo12bo$9bobo12bo78b3o4bo13bo$4b3o4bo13bo79bo$6bo97bo
$5bo2$99b3o$3o98bo$2bo97bo$bo5$103b2o$102bobo$104bo20b3o$125bo$126bo!

[MathAndCode]

8G

I found a couple of variants.

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x = 142, y = 41, rule = B3/S23
120bo$119bo$14bo104b3o$13bo$13b3o89bo$106bo$5bo98b3o$6bo$4b3o124bo$131b
obo$25bo105b2o$25bobo85bobo$25b2o87b2o$13bobo98bo$14b2o$14bo2$8b2o$7b
o2bo100b2o$8b2o100bo2bo7bo$111b2o7bo18bo$120b3o16bobo$139b2o$2bo110b2o
$2b2o13b3o93b2o$bobo7b2o4bo$12b2o4bo$11bo90bo$102b2o8bo9bo$101bobo7bo
bo7bobo$112bo8bobo$b2o119bo$obo$2bo20bo$22b2o$22bobo110b2o$135bobo$135b
o$112b2o$113b2o$112bo!

There's a third potential variant, but I don't know how to get one of the honey farm predecessors in (which is why I'm making this post instead of submitting all of the syntheses to Catagolue silently).

Code: Select all

x = 41, y = 45, rule = B3/S23
19bo$18bo$18b3o2$4bo$5bo$3b3o2$30bo$30bobo$30b2o$12bobo$13b2o$13bo5$10b
2o$9bo2bo7bo$10b2o7bo18bo$19b3o16bobo$38b2o$12b2o$12b2o3$bo$b2o$obo$19b
2o$19bobo$20bo3$34b2o$3bo30bobo$3b2o29bo$2bobo$21b3o$21bo$22bo$30b3o$
30bo$31bo!
[[ PASTET 31 PASTE o! 21 28 ]]

[May13]

How to post this synthesis to Catagolue correctly?

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x = 807, y = 155, rule = B3/S23
255bo$256b2o$255b2o18$370bo$370bobo$370b2o3$404bo35bo$402b2o35bo$403b
2o34b3o$407bo$407bobo$407b2o13$312bobo$313b2o$313bo2$424bo$422b2o$317b
o105b2o$318b2o$317b2o10$649bo$648bo$648b3o2$311bo$311bo$311bo4$575bo$
574bo$574b3o2$313b2o$313b2o2$364b2o$364b2o418bo$7bo3bobo770bobo$8bo2b
2o771b2o$6b3o3bo787bo$568b2o12b3o13b3o197b2o$567bobo18bo210b2o$567b2o
18bobo$72bo514bobo28bo$70b2o295bo220bo28bobo$2o69b2o294bo249bobo$b2o
364bo193bo56bo$o559bobo213b3o13b3o$561bo33b2o185bo$595bo3b2o180bobo$
597bo2bo180bobo$60bo3b3o529b4o182bo$60b2o2bo530bo$59bobo3bo529b2ob2o$
599bo$595b4o190b2o$594bo2bo191bo3b2o$594b2o3bo191bo2bo$598b2o33bo156b
4o$632bobo154bo$360b2o214bo56bo155b2ob2o$359b2o214bobo215bo$254b2o105b
o213bobo28bo182b4o$255b2o319bo28bobo180bo2bo$254bo350bobo18b2o160b2o3b
o$606bo18bobo164b2o$365bo228b3o13b3o12b2o$364b2o$364bobo$800bo$799bobo
$799bobo$800bo$788b3o13b3o3$618b3o$620bo$619bo$782b2o$783b2o$270b2o
510bo$269bobo525b2o$271bo524bobo$237b3o34b2o522bo$239bo35b2o$238bo35bo
269b3o$546bo$545bo$307b2o$306bobo$308bo18$422b2o$421b2o$423bo!

I tried but it seems the synthesis was not recognized. Although I had no problem with other syntheses.

[yujh]

It uploads at specific times, I think

[Ian07]

How to post this synthesis to Catagolue correctly?

Code: Select all

RLE

I tried but it seems the synthesis was not recognized. Although I had no problem with other syntheses.

Just submitted this partially-rewinded version. Hopefully it works:

Code: Select all

x = 820, y = 155, rule = B3/S23
268bo$269b2o$268b2o18$383bo$383bobo$383b2o3$417bo35bo$415b2o35bo$416b
2o34b3o$420bo$420bobo$420b2o13$325bobo$326b2o$326bo2$437bo$435b2o$330b
o105b2o$331b2o$330b2o10$662bo$661bo$661b3o2$324bo$324bo$38bo285bo$8bo
27b2o$6bobo28b2o$7b2o$588bo$587bo$587b3o$96bobo$96b2o228b2o$97bo228b2o
2$377b2o$377b2o418bo$797bobo$797b2o$813bo$581b2o12b3o13b3o197b2o$580bo
bo18bo210b2o$580b2o18bobo$600bobo28bo$380bo220bo28bobo$380bo249bobo$
380bo193bo56bo$573bobo213b3o13b3o$574bo33b2o185bo$608bo3b2o180bobo$
610bo2bo180bobo$609b4o182bo$608bo$608b2ob2o$612bo$608b4o190b2o$607bo2b
o191bo3b2o$bo605b2o3bo191bo2bo$b2o608b2o33bo156b4o$obo642bobo154bo$
373b2o214bo56bo155b2ob2o$372b2o214bobo215bo$267b2o105bo213bobo28bo182b
4o$90b2o176b2o319bo28bobo180bo2bo$60b2o28bobo174bo350bobo18b2o160b2o3b
o$61b2o27bo528bo18bobo164b2o$60bo317bo228b3o13b3o12b2o$377b2o$377bobo$
813bo$812bobo$812bobo$813bo$801b3o13b3o3$631b3o$633bo$632bo$795b2o$
796b2o$283b2o510bo$282bobo525b2o$284bo524bobo$250b3o34b2o522bo$252bo
35b2o$251bo35bo269b3o$559bo$558bo$320b2o$319bobo$321bo18$435b2o$434b2o
$436bo!

[May13]

Two great reducions for very expensive (~100 gliders) syntheses (I already submitted these to Catagolue):

Code: Select all

x = 427, y = 341, rule = B3/S23
33$223bo$222bo$222b3o14$194bo$155bo36bobo$154bo38b2o$154b3o42bobo$199b
2o$200bo$209b2o$209b2o$157b3o$157bo$158bo3$204bo$203b2o$203bobo6$201b
2o11b2o$200bobo11bobo$202bo11bo94$284bo$284bobo$284b2o45$64bo$64bobo$
64b2o$39bo341bo$37bobo339bobo$38b2o340b2o5$27bo356bo$25bobo355bobo$26b
2o355bobo$52bo139bo191bo$52bobo137bobo$52b2o138b2o5$195b2o173bo$37bo
157b2o171bobo$35bobo331b2o$36b2o2$29bo342b2o$30bo341b2o$28b3o349bo2bo$
380b6o$386bo$185b2o195b2ob2o$185b2o195bo$383b6o$385bo2bo4$197bo$196bob
o$196bo2bo189b2o$197b2o190b2o3$190bo$189bobo$189bobo$190bo200bo$390bob
o$64b3o323bobo$64bo326bo$65bo$404b2o$179bo224bobo$31b3o145b2o223bo$33b
o144bobo$32bo22$132b3o$134bo$133bo28$249b2o$249bobo$249bo!

Can anyone found a good cleanup for another reduction of glider cost?

Code: Select all

x = 38, y = 38, rule = B3/S23
16bo$15bo$15b3o5$14bo$13b2o$13bobo2$9bo$10bo$8b3o10$10b2o25bo$9bobo23b
2o$11bo24b2o$21bo9b3o$20b2o9bo$20bobo3b2o4bo$26bobo$26bo2$20b2o$20bobo
$20bo$b2o$obo$2bo!

[MathAndCode]

I'm posting this here in case someone can find a good cleanup for it. (May13 seems to have a knack for that sort of thing.)

Code: Select all

x = 40, y = 55, rule = B3/S23
o$b2o$2o12$24b3o$20bo3bo$19b2o4bo$19bobo2$34b2o$13b2o8bo10bobo$12bobo
7b2o10bo$14bo7bobo25$10b2o$9bobo$11bo2$38b2o$2b2o33b2o$bobo35bo$3bo!

[dvgrn]

I'm posting this here in case someone can find a good cleanup for it. (May13 seems to have a knack for that sort of thing.)

Code: Select all

x = 40, y = 55, rule = B3/S23
o$b2o$2o12$24b3o$20bo3bo$19b2o4bo$19bobo2$34b2o$13b2o8bo10bobo$12bobo
7b2o10bo$14bo7bobo25$10b2o$9bobo$11bo2$38b2o$2b2o33b2o$bobo35bo$3bo!

It often surprises me how few gliders are needed to tame an ugly-looking explosion. This reaction might be a good excuse for someone to finally write an efficient exhaustive enumerator for two-glider cleanups -- maybe lifelib-based?

If the enumeration could be ordered by the gliders' collision times, so that all early-collision options are tried first... then a lot of two-glider cleanup problems could be solved by a "run the search until you're bored" method. If there's a solution out there to be found, 99% of the time it will show up before the searcher's patience runs out. The search might not complete an exhaustive enumeration in any reasonable amount of time, but it wouldn't really make sense to check all the really unlikely options toward the end of the enumeration anyway.

-- I guess gencols could find a two-glider solution eventually, but it seems like that would need an awful lot of setup. Something more convenient is needed. A 2G cleanup is the only way to improve on this:

Code: Select all

x = 133, y = 62, rule = LifeHistory
132.C$130.2C$131.2C5$42.A$43.2A$42.2A5$2.C$C.C$.2C5$66.3A$62.A3.A$61.
2A4.A$61.A.A2$76.2A$55.2A8.A10.A.A$54.A.A7.2A10.A$56.A7.A.A4$87.C$85.
2C$86.2C19$52.2A$51.A.A$53.A2$80.2A$44.2A33.2A$43.A.A35.A$45.A!

[May13]

I'm posting this here in case someone can find a good cleanup for it. (May13 seems to have a knack for that sort of thing.)

Code: Select all

x = 40, y = 55, rule = B3/S23
o$b2o$2o12$24b3o$20bo3bo$19b2o4bo$19bobo2$34b2o$13b2o8bo10bobo$12bobo
7b2o10bo$14bo7bobo25$10b2o$9bobo$11bo2$38b2o$2b2o33b2o$bobo35bo$3bo!

2G cleanup:

Code: Select all

x = 79, y = 71, rule = B3/S23
24bo$25b2o$24b2o6$obo$b2o$bo4$48b3o$44bo3bo$43b2o4bo$43bobo2$58b2o$37b
2o8bo10bobo$36bobo7b2o10bo$38bo7bobo25$34b2o$33bobo$35bo2$62b2o$26b2o
33b2o$25bobo35bo$27bo14$76b2o$76bobo$76bo!

[dvgrn]

Is this known?

Code: Select all

x = 16, y = 11, rule = B3/S23
5b2o6bobo$4bo2bo5b2o$5b2o7bo2$3o5$2b2o$2b2o!

EDIT: It's a 1G seed for a bun on block and snake.

For some reason this older post caught my eye. It looks like an equivalent-cost synthesis is known: the current-best synthesis for xs17_mm0e96z56 is 7 gliders, also using a 5G conversion of a beehive.

Code: Select all

x = 50, y = 20, rule = B3/S23
2bo$obo$b2o45bo$38bo8bobo$4b2o30bobo8bobo$3bobo31b2o9bo$5bo35b2o$40bo
bo$42bo3$48bo$47b2o$47bobo$40bo$40b2o$39bobo$47bo$46b2o$46bobo!

And the same conversion is used for xs18_mm0e952z56, not surprisingly.

I went ahead and boxed wwei47's equivalent converter for a random larger object, on the theory that it's a nice variant and would make it possible to build Spartan seeds for a number of fairly complicated-looking objects. The known 5G converter is all-at-once, but this variant is basically a three-stage converter -- would be really good for slow-salvo constructions of things. Not that we need to add block-on-snake to anything that I know of, but still... maybe someday?

Code: Select all

x = 85, y = 19, rule = B3/S23
28bo$18bo7b2o50bo$17bobo7b2o48bobo$17bobo57bobo$o14b2obo56b2obo$b2o11b
o2bo56bo2bo$2o13b2o57b3o2$70b2obob2o$70bob2ob2o$7bo$8b2o69b2o$7b2o69bo
2bo$11b3o65bobo$13bo66bo$12bo$82b3o$82bo$83bo!

[MathAndCode]

Some of these converters may be known, but I highly doubt that all of them are.

Code: Select all

x = 151, y = 1427, rule = B3/S23
9bo$8bo$2o6b3o$obo119bo$2bo118bo$2b2o8b3o98b2o6b3o$12bo100bobo$13bo101b
o$115b2o8b3o$125bo$126bo$2o$b2o$o$9b2o102b2o$8b2o104b2o11bo$10bo102bo
12b2o$b2o114b2o7bobo$2b2o114b2o$bo115bo63$11bo$11bobo$11b2o$124bo$3bo
bo118bobo$4b2o118b2o$4bo$116bobo$117b2o$9bo107bo$8bo$2o6b3o$obo119bo$
2bo118bo$2b2o8b3o98b2o6b3o$12bo100bobo$13bo101bo$115b2o8b3o$125bo$126b
o$2o$b2o$o$9b2o102b2o$8b2o104b2o11bo$10bo102bo12b2o$b2o114b2o7bobo$2b
2o114b2o$bo115bo70$8bobo$9b2o$9bo$13bo107bobo$13bobo106b2o$13b2o107bo
$126bo$5bobo118bobo$6b2o118b2o$6bo$118bobo$119b2o$11bo107bo$10bo$2b2o
6b3o$2bobo119bo$4bo118bo$4b2o8b3o98b2o6b3o$14bo100bobo$15bo101bo$117b
2o8b3o$127bo$128bo$2b2o$3b2o$2bo$11b2o102b2o$10b2o104b2o11bo$12bo102b
o12b2o$3b2o114b2o7bobo$4b2o114b2o$3bo115bo88$11bo$12b2o$11b2o$124bo$20b
o104b2o$18b2o104b2o$10bo8b2o$11b2o120bo$10b2o119b2o$123bo8b2o$124b2o$
15bo107b2o$14bo$6b2o6b3o$6bobo119bo$8bo118bo$8b2o8b3o98b2o6b3o$18bo100b
obo$19bo101bo$121b2o8b3o$131bo$132bo$6b2o$7b2o$6bo$15b2o102b2o$14b2o104b
2o11bo$16bo102bo12b2o$7b2o114b2o7bobo$8b2o114b2o$7bo115bo70$4bo$5b2o$
4b2o$13bo103bo$11b2o105b2o$12b2o103b2o$3bo122bo$4b2o118b2o$3b2o120b2o
$116bo$117b2o$11bo104b2o$10bo$2b2o6b3o$2bobo119bo$4bo118bo$4b2o8b3o98b
2o6b3o$14bo100bobo$15bo101bo$117b2o8b3o$127bo$128bo$2b2o$3b2o$2bo$11b
2o102b2o$10b2o104b2o11bo$12bo102bo12b2o$3b2o114b2o7bobo$4b2o114b2o$3b
o115bo75$4bo$5b2o$4b2o$13bo103bo$11b2o105b2o$12b2o103b2o$3bo122bo$4b2o
118b2o$3b2o120b2o$116bo$117b2o$12bo103b2o$11bo$3b2o6b3o$3bobo119bo$5b
o118bo$5b2o8b3o98b2o6b3o$15bo100bobo$16bo101bo$118b2o8b3o$128bo$129bo
$3b2o$4b2o$3bo$12b2o102b2o$11b2o104b2o11bo$13bo102bo12b2o$4b2o114b2o7b
obo$5b2o114b2o$4bo115bo55$29bo$29bobo$29b2o$142bo$142bobo$142b2o8$8bo
$6b2o$7b2o$121bo$119b2o$3bobo114b2o$4b2o4bo$4bo5bobo$10b2o104bobo$117b
2o4bo$5bo111bo5bobo$6b2o115b2o$5b2o$118bo$119b2o$14bo103b2o$13bo$5b2o
6b3o$5bobo119bo$7bo118bo$7b2o8b3o98b2o6b3o$17bo100bobo$18bo101bo$120b
2o8b3o$130bo$131bo$5b2o$6b2o$5bo$14b2o102b2o$13b2o104b2o11bo$15bo102b
o12b2o$6b2o114b2o7bobo$7b2o114b2o$6bo115bo56$10bo$8bobo$9b2o$123bo$121b
obo$122b2o2$7bobo$8b2o$8bo$120bobo$121b2o$13bo6bo100bo$12bo6b2o$4b2o6b
3o4bobo$4bobo119bo6bo$6bo118bo6b2o$6b2o8b3o98b2o6b3o4bobo$16bo100bobo
$17bo101bo$119b2o8b3o$129bo$130bo$4b2o$5b2o$4bo$13b2o102b2o$12b2o104b
2o11bo$14bo102bo12b2o$5b2o114b2o7bobo$6b2o114b2o$5bo115bo60$14bobo$14b
2o$15bo$127bobo$9bobo115b2o$10b2o116bo$10bo11bobo$22b2o98bobo$23bo99b
2o$123bo11bobo$7bobo125b2o$8b2o126bo$8bo$120bobo$121b2o$13bo6bo100bo$
12bo6b2o$4b2o6b3o4bobo$4bobo119bo6bo$6bo118bo6b2o$6b2o8b3o98b2o6b3o4b
obo$16bo100bobo$17bo101bo$119b2o8b3o$129bo$130bo$4b2o$5b2o$4bo$13b2o102b
2o$12b2o104b2o11bo$14bo102bo12b2o$5b2o114b2o7bobo$6b2o114b2o$5bo115bo
82$16bobo$16b2o$17bo$129bobo$11bobo115b2o$12b2o116bo$12bo$124bobo$21b
obo101b2o$21b2o102bo$9bobo10bo$10b2o122bobo$10bo123b2o$122bobo10bo$123b
2o$15bo107bo$14bo$6b2o6b3o8bo$6bobo15b2o102bo$8bo15bobo100bo$8b2o8b3o
98b2o6b3o8bo$18bo100bobo15b2o$19bo101bo15bobo$121b2o8b3o$131bo$132bo$
6b2o$7b2o$6bo$15b2o102b2o$14b2o104b2o11bo$16bo102bo12b2o$7b2o114b2o7b
obo$8b2o114b2o$7bo115bo77$21bo$12bo8bobo$13bo7b2o$11b3o120bo$125bo8bo
bo$126bo7b2o$124b3o$13bobo$14b2o$14bo$126bobo$127b2o$19bo6bo100bo$18b
o6b2o$10b2o6b3o4bobo$10bobo119bo6bo$12bo118bo6b2o$12b2o8b3o98b2o6b3o4b
obo$22bo100bobo$23bo101bo$125b2o8b3o$135bo$136bo$10b2o$11b2o$10bo$19b
2o102b2o$18b2o104b2o11bo$20bo102bo12b2o$11b2o114b2o7bobo$12b2o114b2o$
11bo115bo60$11bo$12b2o$11b2o$26bo97bo$26bobo96b2o$26b2o3bo92b2o$30bo108b
o$11bobo16b3o106bobo$12b2o125b2o3bo$12bo7bo122bo$21bo102bobo16b3o$19b
3o103b2o$125bo7bo$31bo102bo$10bo18b2o101b3o$11b2o17b2o3bo$10b2o22bo109b
o$34b3o86bo18b2o$13bobo108b2o17b2o3bo$14b2o107b2o22bo$14bo132b3o$126b
obo$127b2o$19bo6bo100bo$18bo6b2o$10b2o6b3o4bobo$10bobo119bo6bo$12bo118b
o6b2o$12b2o8b3o5b2o91b2o6b3o4bobo$22bo7bobo90bobo$23bo6bo94bo$125b2o8b
3o5b2o$135bo7bobo$136bo6bo$10b2o18b3o$11b2o17bo$10bo20bo$19b2o102b2o18b
3o$18b2o104b2o11bo5bo$20bo102bo12b2o6bo$11b2o114b2o7bobo$12b2o114b2o$
11bo115bo65$30bobo$12bo17b2o$13b2o16bo$12b2o129bobo$125bo17b2o$15bobo
108b2o16bo$16b2o107b2o$16bo$128bobo$129b2o$21bo6bo100bo$20bo6b2o$12b2o
6b3o4bobo$12bobo119bo6bo$14bo118bo6b2o$14b2o8b3o98b2o6b3o4bobo$24bo100b
obo$25bo101bo$127b2o8b3o$137bo$138bo$12b2o$13b2o$12bo$21b2o102b2o$20b
2o104b2o11bo$22bo102bo12b2o$13b2o114b2o7bobo$14b2o114b2o$13bo115bo58$
25bo$26bo$24b3o$138bo$36bo102bo$15bo18b2o101b3o$16b2o17b2o$15b2o132bo
$128bo18b2o$18bobo14bo93b2o17b2o$19b2o14bobo90b2o$19bo15b2o$131bobo14b
o$132b2o14bobo$24bo6bo100bo15b2o$23bo6b2o$15b2o6b3o4bobo$15bobo119bo6b
o$17bo118bo6b2o$17b2o8b3o98b2o6b3o4bobo$27bo100bobo$28bo5bo95bo$33b2o
95b2o8b3o$33bobo104bo$141bo5bo$15b2o129b2o$16b2o128bobo$15bo$24b2o102b
2o$23b2o104b2o11bo$25bo102bo12b2o$16b2o114b2o7bobo$17b2o114b2o$16bo115b
o69$34bo$13bo18b2o$14b2o17b2o$13b2o132bo$126bo18b2o$16bobo108b2o17b2o
$17b2o107b2o$17bo$129bobo$130b2o$22bo6bo100bo$21bo6b2o$13b2o6b3o4bobo
$13bobo119bo6bo$15bo118bo6b2o$15b2o8b3o98b2o6b3o4bobo$25bo100bobo$26b
o101bo$128b2o8b3o$138bo$139bo$13b2o$14b2o$13bo$22b2o102b2o$21b2o104b2o
11bo$23bo102bo12b2o$14b2o114b2o7bobo$15b2o114b2o$14bo115bo!

The two that have diehards (which aren't really converters anyway) probably have a one-glider cleanup, but I haven't found one.

[MathAndCode]

118

Code: Select all

x = 36, y = 33, rule = B3/S23
5b2o$5bo$ob2obo$2obob2o2$4b3o$3bo2bo$3b2o4$16b3o3bo$15b2o5b2o$13b2o5b
2o2bobo$13bo2b2ob4obo$13b4o5b3o2$11b3o5b4o$11bob4ob2o2bo$9bobo2b2o5b2o
$12b2o5b2o$13bo3b3o4$31b2o$29bo2bo$29b3o2$29b2obob2o$30bob2obo$30bo$
29b2o!

The region almost stabilizes around generation 105. I found six completions, which I have submitted to Catagolue. Thank you.

Code: Select all

x = 995, y = 57, rule = B3/S23
24bobo$24b2o195bobo$25bo195b2o$3bobo216bo$4b2o194bobo226bobo195bo189b
o$4bo196b2o226b2o176bo17b2o170bo17b2o$25bobo173bo228bo177bo17b2o170bo
17b2o$25b2o195bobo183bobo195b3o187b3o$26bo195b2o185b2o$223bo185bo$16b
o413bobo191bobo187bobo177bo$17bo196bo215b2o192b2o188b2o158bo17b2o$15b
3o197bo215bo193bo189bo159bo17b2o$213b3o757b3o$25bo396bo192bo189bo$23b
2o198bo199bo192bo189bo$13bobo8b2o195b2o198b3o190b3o187b3o184bobo$14b2o
195bobo8b2o767b2o$14bo197b2o217bo192bo189bo177bo$22bo189bo216b2o191b2o
188b2o$22bobo195bo198bobo8b2o180bobo8b2o177bobo8b2o167bo$22b2o196bobo
197b2o191b2o188b2o178bo$220b2o198bo192bo189bo177b3o$428bo192bo189bo$428b
obo190bobo187bobo177bo$4b2o422b2o191b2o188b2o176b2o$3bobo196b2o775bob
o8b2o$5bo195bobo776b2o$13bo189bo776bo$12b2o197bo198b2o191b2o188b2o193b
o$2b2o8bobo195b2o197bobo190bobo187bobo193bobo$3b2o195b2o8bobo198bo192b
o189bo193b2o$2bo198b2o216bo192bo189bo$200bo217b2o191b2o188b2o$10b3o395b
2o8bobo180b2o8bobo177b2o8bobo$10bo197b3o198b2o191b2o188b2o176b2o$11bo
196bo199bo192bo189bo177bobo$209bo761bo$bo414b3o190b3o187b3o177bo$b2o196b
o216bo192bo189bo178b2o$obo196b2o216bo192bo189bo167b2o8bobo$23bo174bob
o768b2o$22b2o197bo186bo191bo190bo176bo$22bobo195b2o186b2o190b2o189b2o
$2bo217bobo184bobo189bobo188bobo183b3o$2b2o196bo229bo191bo190bo162bo$
bobo196b2o227b2o190b2o189b2o163bo$199bobo227bobo189bobo188bobo$409bo191b
o190bo174bo$409b2o190b2o189b2o173b2o$408bobo189bobo188bobo172bobo3$984b
3o$965b2o17bo$966b2o17bo$965bo!

Edit: Here are two-glider reductions allowed by my newfound ability to run Python scripts in Golly:

Code: Select all

x = 1162, y = 59, rule = B3/S23
35bo235bo244bo$34bo235bo244bo218bo217bo206bo$34b3o233b3o242b3o186bo29b
obo185bo29bobo174bo29bobo$4bo235bo244bo219b2o27b2o187b2o27b2o176b2o27b
2o$5bo235bo244bo217b2o216b2o205b2o$3b3o233b3o242b3o$36bo235bo244bo215b
o217bo206bo$35bo235bo244bo215bo217bo206bo$35b3o233b3o242b3o213b3o215b
3o204b3o13$9bobo234bobo242bobo212bobo215bobo204bobo$10b2o235b2o243b2o
213b2o216b2o205b2o$10bo15bo220bo15bo228bo15bo198bo15bo201bo15bo190bo15b
o$27bo236bo244bo214bo217bo206bo$25b3o234b3o242b3o212b3o215b3o204b3o$9b
3o234b3o242b3o212b3o215b3o204b3o$11bo236bo244bo214bo217bo206bo$10bo236b
o244bo214bo217bo206bo2$27bo236bo244bo214bo217bo206bo$26bo236bo244bo214b
o217bo206bo$26b3o234b3o242b3o212b3o215b3o204b3o$10b3o234b3o242b3o212b
3o215b3o204b3o$10bo236bo244bo214bo217bo206bo$11bo15bo220bo15bo228bo15b
o198bo15bo201bo15bo190bo15bo$26b2o235b2o243b2o213b2o216b2o205b2o$26bo
bo234bobo242bobo212bobo215bobo204bobo13$3o234b3o243b3o211b3o216b3o203b
3o$2bo236bo245bo213bo218bo205bo$bo236bo245bo213bo218bo205bo$32b3o234b
3o243b3o211b3o216b3o$32bo236bo245bo213bo218bo202b2o$33bo236bo245bo213b
o218bo171b2o27b2o$b3o234b3o243b3o211b3o216b3o200bobo29bo$3bo236bo245b
o213bo218bo202bo$2bo236bo245bo213bo218bo!

[bibunsekibun]

xs20_0gs2qb96z3421
12G → 9G

Code: Select all

x = 134, y = 91, rule = B3/S23
72bobo$72b2o$73bo2$bo$2bo$3o2$100b3o28b3o$73b2o$72b2o$33b2o8bo22b2o6bo
22b2o29b2o$32bo2bo6bo22bo2bo27bo2bo27bo2bo$33bobo6b3o21bobo28bobo28bob
o$34bo32bo30bo30bo$9b2o109b3o$9bobo110bo$9bo111bo2$66bo30bo30bo$65bobo
28bobo28bobo$65bobo28bobo28bobo$66bo30bo30bo3$123b2o$123b2o$39b3o$39bo
$40bo47b3o$90bo$89bo8b2o$98bobo$98bo5$40bo$39bo$39b3o13$24bo$25bo$23b
3o3$35bo$34bo$28b2o4b3o$28bobo$28bo2$40b2o$40bobo$40bo8$31b3o$31bo$32b
o2$bo$b2o$obo6$6b3o$8bo$7bo28b2o$36bobo$36bo!

[MathAndCode]

xs20_0gs2qb96z3421
12G → 9G

I reduced that by another three gliders.

Code: Select all

x = 117, y = 31, rule = B3/S23
103bo$101bobo$102b2o4$114bo$114bobo$107bo6b2o$108b2o$6bo100b2o$6bobo$
6b2o4$3b2o$2b2o$4bo3$3o$2bo$bo106bo$107bobo$107bobo$108bo3$103b2o$103b
2o!

[bibunsekibun]

xs29_039e0e96z355d553
40G→13G

Code: Select all

x = 228, y = 137, rule = B3/S23
116bo$114bobo$115b2o11$159bo$157bobo$158b2o$174bo$174bobo$174b2o$168bo
$166b2o$167b2o2$152bo$150bobo$151b2o3$221bo3b2o$81bo138bobobobo$80bo
139bobobo$44bo35b3o138b2ob2o$43bo$34b2o7b3o42b2o84b2o45b7o$33bo2bo50bo
2bo72bo9bo2bo44bo5bo$34b2o52b2o72bobo9b2o46b5o$8b2o82b2o68b2o14b2o44bo
$8bobo81b2o84b2o$8bo31b3o$b2o37bo$obo38bo31b2o$2bo71b2o$73bo5$175b2o$
175bobo$175bo2$158b2o$157bobo$159bo12$2bo$obo$b2o11$45bo$43bobo$44b2o$
76bo$76bobo$76b2o$70bo$68b2o$69b2o2$38bo$36bobo$37b2o5$68bo$67bo$67b3o
3$82bo$81bo$81b3o7$71b2o$71bobo$71bo$64b2o$63bobo$65bo$78b3o$78bo$79bo
3$46b2o$47b2o$46bo8$79b2o$79bobo$79bo2$42b2o$41bobo$43bo!

[Entity Valkyrie 2]

xs29_039e0e96z355d553
40G→13G

Code: Select all

x = 228, y = 137, rule = B3/S23
116bo$114bobo$115b2o11$159bo$157bobo$158b2o$174bo$174bobo$174b2o$168bo
$166b2o$167b2o2$152bo$150bobo$151b2o3$221bo3b2o$81bo138bobobobo$80bo
139bobobo$44bo35b3o138b2ob2o$43bo$34b2o7b3o42b2o84b2o45b7o$33bo2bo50bo
2bo72bo9bo2bo44bo5bo$34b2o52b2o72bobo9b2o46b5o$8b2o82b2o68b2o14b2o44bo
$8bobo81b2o84b2o$8bo31b3o$b2o37bo$obo38bo31b2o$2bo71b2o$73bo5$175b2o$
175bobo$175bo2$158b2o$157bobo$159bo12$2bo$obo$b2o11$45bo$43bobo$44b2o$
76bo$76bobo$76b2o$70bo$68b2o$69b2o2$38bo$36bobo$37b2o5$68bo$67bo$67b3o
3$82bo$81bo$81b3o7$71b2o$71bobo$71bo$64b2o$63bobo$65bo$78b3o$78bo$79bo
3$46b2o$47b2o$46bo8$79b2o$79bobo$79bo2$42b2o$41bobo$43bo!

12G, since the hive and block has a 3G synthesis:

Code: Select all

x = 24, y = 9, rule = B3/S23
5bo$6bo11b2o$4b3o10bo2bo$bo16b2o$b2o19b2o$obo19b2o$6b3o$8bo$7bo!

[MathAndCode]

12G, since the hive and block has a 3G synthesis:

I reduced the cost by another glider.

Code: Select all

x = 723, y = 34, rule = B3/S23
199bo$197bobo$198b2o$448bo$446bobo$197bobo247b2o$198b2o263bo$198bo264b
obo$463b2o$220bo236bo258bo3b2o$bo218bobo232b2o258bobobobo$2bo217b2o
234b2o257bobobo$3o713b2ob2o$11bobo427bo$11b2o426bobo274b7o$12bo427b2o
263bo10bo5bo$704bobo10b5o$705b2o12bo$195bo$194bobo$194b2o$198b3o2$196b
o5bo260b2o$5bo190bo5bo249bo9bo2bo230b2o$5b2o189bo5bo248bobo9b2o230bobo
$4bobo444b2o14b2o228bo$198b3o254b3o9b2o2$453bo5bo$453bo5bo$453bo5bo2$
455b3o!

[hotdogPi]

Do these almost still lifes help at all? In both cases, I started with the Iwona active region (marked in red) and manually added a spark, looking for the region to repeat. While doing so, as a side effect, there were two times that a region stayed stable for a while, with the first being near generation 40 and the second being in generation 4.

Code: Select all

x = 9, y = 13, rule = LifeHistory
2.3A$2.ABA$A4BA$.B3AB$.BAB2AB$2.4BA$2.BC4BA$.BDAC4A$.BDBAC2AB$.BD2BD
2B$2.2BD3B$4.2A2B$4.3A!

Code: Select all

x = 12, y = 16, rule = LifeHistory
5.B$A3.4B$2.A2BA3B$2.ABA5B$2.3A5B$3.4BA2B$2.3B2A3B$.2BABA2B2A$2.A2BCA
B2AB$2.2BDBC3B2A$3.BDBADA2BA$3.BD2BC4A$4.2BD3B$6.BA2B$6.BAB$7.A!

[MathAndCode]

Do these almost still lifes help at all? In both cases, I started with the Iwona active region (marked in red) and manually added a spark, looking for the region to repeat. While doing so, as a side effect, there were two times that a region stayed stable for a while, with the first being near generation 40 and the second being in generation 4.

The second potential base looks like anything using it probably already has a fairly cheap glider synthesis, but the first potential base is much too large for that to be anywhere near likely. According to synthesise-patt.py, there are 139 ways to make a honey farm perturbed in the same manner as it is by the phi spark with three gliders.

Code: Select all

x = 10357, y = 25, rule = B3/S23
4bobo71bo71bo75bo77bo87bo63bo68bo84bo64bo86bo62bobo77bo70bo75bo73bo84b
o72bo75bo66bo78bo74bo74bo76bobo73bo72bo74bo68bo74bo74bo74bo74bo74bo75b
o82bo65bo80bo77bo66bo80bo68bo72bo74bobo72bo82bobo74bo75bo63bobo80bo74b
o74bo75bo67bo74bo74bo80bobo66bo72bobo73bo73bobo82bobo73bo72bobo63bo74b
o76bo77bo74bo74bo79bo70bo76bo76bo71bo74bo68bo74bo74bo74bo74bo74bo74bo
74bo84bobo72bo64bo75bo74bo82bo65bo83bo64bo75bo83bo74bo69bo74bo75bo74bo
75bo67bobo80bo74bo67bo74bo74bo75bo72bobo81bobo65bo74bo80bo75bo65bo79bo
70bo81bo67bo79bo74bo76bo74bo73bo68bo81bo74bo67bo74bo74bo74bo74bo82bo
66bo11bo72bo64bo74bo81bo67bo76bo$4b2o73bo71b2o74bo77bo84b2o65b2o67b2o
83bo64b2o82b2o64b2o78bo70bo72bobo74bo82bo73bobo72bo65bobo79bo74bo74bo
75b2o74bobo71bo74bo68bo74bo74bo74bo74bo74bo72bobo82bobo64bo80bo77bo66b
o78bo70bo72b2o73b2o73b2o80b2o73b2o74b2o65b2o81bo74bo74bo75bo67bo74bo
74bo79b2o68bo72b2o74bo73b2o82b2o73bo73b2o65b2o73b2o72bobo78bo74bo74bo
76b2o72bo75bobo72b2o73bo74bo68bo74bo74bo74bo74bo74bo74bo74bo73bo9b2o
73bobo63bo72bobo72bobo82bobo64bo81bo66b2o74bo80b2o74bo71bo74bo75bo74bo
75bo67b2o5bo75bo74bo67bo74bo74bo75bo72b2o81b2o64bobo72bobo80bobo73bobo
64b2o78bo70bo79bo69bo79bo74bo73b2o74bo75bo68bo81bo74bo67bo74bo74bo74bo
74bo81bobo65bo9bo74bo64bo74bo74bo3b2o69bo73bobo$5bo71b3o2bo67b2o73b3o
75b3o85b2o63b2o67b2o82b3o63b2o84b2o63bo77b3o68b3o73b2o72b3o82b3o71b2o
73b3o64b2o77b3o72b3o72b3o76bo74b2o70b3o72b3o66b3o72b3o72b3o72b3o72b3o
72b3o73b2o82b2o63b3o78b3o75b3o64b3o78b3o66b3o71b2o74bo73b2o82bo74b2o
74b2o64bo80b3o72b3o72b3o73b3o65b3o72b3o72b3o80bo66b3o72bo73b3o73bo84bo
73b3o72bo64b2o73b2o74b2o76b3o72b3o72b3o77b2o69b3o75b2o74b2o70b3o72b3o
66b3o72b3o72b3o72b3o72b3o72b3o72b3o72b3o74bo9bo63bo9b2o62b3o73b2o4bo
68b2o5bo67bo8b2o63b3o81b3o63b2o73b3o81b2o73b3o67b3o72b3o73b3o72b3o73b
3o67bo7bo72b3o72b3o65b3o72b3o72b3o73b3o72bo83bo65b2o73b2o80b2o74b2o64b
2o77b3o68b3o79b3o65b3o77b3o72b3o74b2o73b3o71b3o66b3o79b3o72b3o65b3o72b
3o72b3o72b3o72b3o81b2o64b3o9b3o70b3o62b3o72b3o75bo3b2o66b3o74b2o$bo80b
obo290bo154bo5694b3o74bo155bo75bo67bo78bo69bo755b3o523bo67bo1724bo374b
3o$2bo79b2o292b2o152b2o150bo68bo3529bo75bo74bo68bo74bo74bo1648b3o153b
3o73b3o65b3o79bo69bo77bo75bo69bo74bo148bobo831bo67bo79bo75bo67bo74bo
1425bo$3o222b2o78b2o68b2o3bo69bo78bobo11b2o66b3o69bo68bo153bo74bo74bo
75bo68bo74bo74bo155bo74bo74bo225bo74bo68bo74bo74bo74bo74bo74bo303b2o
76b2o65b2o148b2o604b2o73b2o73b2o74b2o66b2o73b2o73b2o148b2o79bo75bo74bo
68bo74bo74bo77bo225b2o73b2o73b2o68bo80b2o224b2o73b2o67b2o73b2o73b2o73b
2o73b2o73b2o75b2o73b2o223b2o299b3o67b3o78bo75bo69bo74bo80b2o66b2o5b2o
74b2o73b2o74b2o149b2o73b2o66b2o73b2o73b2o73bo77b3o65b3o80bo75bo67bo74b
o154bo73bo69bo156bo74bo225bo68bo81bo74bo67bo74bo74bo74bo74bo71b3o75bo
84bo62b3o72b3o$76b2o148b2o76b2o74b2o69b2o89b2o69bo67b3o66b3o77bo75b2o
74bo74bo75bo68bo74bo74bo78bo75b2o73b2o73b2o67bo74bo81b2o73b2o67b2o73b
2o73b2o73b2o73b2o73b2o81bo66bo152bobo68b2o5bobo64bobo7b2o138bobo603bob
o72bobo72bobo73bobo65bobo72bobo72bobo147bobo77b3o73b3o72b3o66b3o72b3o
72b3o78bo73bo74bo74bobo72bobo72bobo69bo78bobo67bo74bo80bobo72bobo66bob
o72bobo72bobo72bobo72bobo72bobo74b2o73b2o74b2o147b2o449b3o73b3o67b3o
72b3o79b2o67bo5b2o74b2o73b2o74b2o75b2o72b2o73b2o66b2o73b2o73b2o73b2o
226b3o73b3o65b3o72b3o77bo75b2o74bo69bo78bo75b2o73b2o67bo74bo81b2o67b2o
80b2o73b2o66b2o73b2o73b2o73b2o73b2o149b2o83b2o63bo74bo71b2o88bo65bo$2b
o72bobo147bo80bo72bobo68b2o92bo67bo218bo73bobo72b3o72b3o73b3o66b3o72b
3o72b3o79bo73bobo72bobo72bobo68bo74bo79bobo72bobo66bobo72bobo72bobo72b
obo72bobo72bobo82bo66bo153bo67bobo7bo66bo7bobo139bo80bo74bo75bo67bo74b
o74bo148bo6bo66b2o6bo74bo66b2o7bo67bo6b2o66bo6bo67bo7b2o140bo526b3o74b
o74bo75bo74bo74bo67b3o80bo68bo74bo81bo74bo68bo74bo74bo74bo74bo74bo76bo
74bo72b2o74b2o74bo79b2o74b2o66b2o528bo74bo75bo74bo75bo73b2o75bo74bo67b
o74bo74bo72bobo525bo74bobo71b3o67b3o79bo74bobo72bobo67bo74bo80bobo66bo
bo71bo7bobo72bobo65bobo5bo66bobo72bobo72bobo72bobo75bo71bobo70b3o9bobo
62bo74bo72bobo85b2o64b2o$b2o74bo377bo373b3o598b3o292b3o72b3o72b2o159b
2o446b3o64b3o223bo82bo223bo74bo75bo67bo74bo74bo79bo67b2o73b2o73bo74b2o
80b2o73b2o74b2o66bo81bo594b3o72b3o369bo73b3o72b3o73bo73b3o82b3o73bo73b
o444bo72b2o154b2o74b2o66b2o79b2o68b2o756bo522bo67bo375b3o298b3o217b3o
72b3o73b2o148b2o73b2o81b2o222b2o74b2o67b2o147bo222bo88b2o64b2o$bobo
296b3o152b2o144bo81bo68bo823b2o72b3o223b2o72b3o82b2o148b3o71b3o72b2o
296bo67b3o224bo79b3o72b3o72b3o73b3o65b3o72b3o72b3o80bo65bobo72bo75b2o
72bo84bo72bobo75bo66bo79b2o72b2o74b2o73b2o67b2o73b2o73b2o446b2o149b2o
223b2o74bo82bo74b2o72b2o223b2o294bo155bo75bo67bo77b2o68b2o78b2o74b2o
68b2o73b2o978b2o66b2o80bo75bo67bo74bo521b3o222bobo147bobo72bobo81bobo
145b3o73bobo73bobo67b2o145bo308bo65bo$302bo151bobo144b2o80b2o67b2o147b
o80bo74bo75bo68bo74bo74bo148b2o72bobo74bo222bo76bo84bo71bo75bo73bo74bo
bo72b2o222bo68bo225bo78bo524b3o215bobo373b3o79bobo70bobo73bobo72bobo
66bobo72bobo72bobo77b2o218b2o72b2o74b2o74b2o71bobo222bobo73bo84bo73bob
o71bobo72b2o72b2o73b2o675bo69bo76b2o74b2o68b2o73b2o895b2o82bobo65bobo
78b2o74b2o66b2o73b2o146b2o81bo69bo146b3o74bo224bo79b2o143bo154b3o72bo
75bo75bo526bo65bo$301bo298bobo79bobo66bobo77bo69b2o79b2o73b2o74b2o67b
2o73b2o73b2o78bo67bobo74bo73bo75bo74bo148bo156b2o76bo73bo73bo74bobo72b
2o65b2o78b3o67bo224b3o79bo1274bo75bo74bo68bo74bo74bo76bobo73b2o73b2o
67bobo73b2o72bo75bobo148b2o73b2o454b2o73bobo74bo151bo671bo75bo69bo74bo
520bo374b2o230bobo73bobo65bobo72bobo77bo68b2o79b2o68b2o79bo68bo73bo76b
o74bo152b2o299bo75bo675b3o63b3o$831b2o67bobo78bobo72bobo73bobo66bobo
72bobo72bobo78b2o68bo224b2o73b2o304bobo298bo73bobo64bobo529b2o73b2o74b
2o66b2o73b2o73b2o1279bo72bobo72bobo69bo72bo152bo147bobo72bobo456bo72bo
151b2o74b2o223b2o1038b2o148b2o73b2o297bo530b2o67bo81bobo67bobo77b2o67b
o150b2o73b2o154bo299bo$830bobo598bobo292bobo72bobo681bo66bo528bobo72bo
bo73bobo65bobo72bobo72bobo79b2o592b2o679bo74bo445bo74bo681bobo73bobo
222bobo886b3o147bobo147bobo72bobo156b3o669bobo298bobo217bobo72bobo$
2631b2o293b2o155bo74bo75bo67bo74bo74bo78bobo591bobo1957bo300bo738b2o
150bo72b3o74bo224bo81b2o73bo74b3o$2630bobo292bobo605bo593bo2998b2o148b
o75bo380b2o75bo73bo$2632bo294bo4197bo225bo383bo149bo$179bo9871b3o$180b
o9870bo$178b3o9871bo$227b2o$226b2o9906b2o$178b2o48bo9905bobo$179b2o
9953bo$178bo!

However, because the region has a fairly large final constellation and doesn't release any gliders, synth-const-4G.py (It provides three-glider solutions and sometimes four-glider solutions.) is likely better for this purpose. Indeed, it provides 166 solutions, each of which uses three gliders.

Code: Select all

x = 1316, y = 1123, rule = B3/S23
218bo$217bo$217b3o7$711bo$711bobo97bo190bo$505bo205b2o97bo189bobo$102b
obo294bo104bo305b3o188b2o209bo98bo$bobo99b2o196bo95bobo104b3o92bo506bo
bo103bobo96bobo$2b2o99bo191bobo2bo97b2o197bobo10bo295bobo2b2o100bo88bo
3b2o104b2o97b2o$2bo293b2o2b3o111bo183b2o9bo292bo3b2o3bobo97b2o87bobo4b
o$10bobo97bo185bo18b3o96bobo87bo104b3o2b2o284bobo4bo3bo100b2o87b2o102b
obo92bobo$10b2o97b2o204bo98b2o86bobo5bo103bobo189bobo92b2o208bo89bo3b
2o94b2o3bo$5b3o3bo92b2o3bobo204bo92b3o91b2o4bo104bo86bobo98bo3b2o303bo
bo85bobo4bo94bo4bobo$7bo97b2o302bo99b3o190b2o96bobo4bo303b2o87b2o104b
2o$6bo97bo305bo291bo3bobo92b2o207b3o$706b2o302bo$707bo303bo6$196bo$
197bo2bobo$195b3o2b2o$201bo79$400bobo197bobo707bo$6bo206bo97bobo87b2o
103bobo92b2o110bo98bo99bo188bo103bobo101bo$5bo105bobo97b2o98b2o88bo
100bo3b2o93bo109b2o97b2o98b2o98bobo86bobo99bo3b2o102b3o$5b3o103b2o99b
2o98bo187bobo4bo204b2o97b2o98b2o97b2o88b2o97bobo4bo$112bo388b2o508bo
188b2o2$9bobo194bobo496bobo92bobo98bobo$5bo3b2o95bobo93bo3b2o98bobo
392bo3b2o94b2o3bo95b2o3bo93bobo297bobo$3bobo4bo91bo3b2o92bobo4bo94bo3b
2o303b2o86bobo4bo94bo4bobo93bo4bobo92b2o3bo104b2o188b2o3bo$4b2o94bobo
4bo93b2o97bobo4bo103b2o193bo4bobo86b2o104b2o99b2o93bo4bobo97bo4bobo
187bo4bobo$101b2o198b2o103bo4bobo98b2o92b2o3bo395b2o98b2o3bo99b2o93b2o
$406b2o3bo99b2o92bobo498bobo102b2o$405bobo105bo699bo88$501bo99bo311bo
86bo309bo$10bobo89bo107bo89bobo199b2o98b2o97bobo96bobo108b2o88b2o2bobo
300b2o$10b2o88bobo106bo91b2o3bo105bo88b2o98b2o99b2o3bo93b2o3bo105b2o
86b2o3b2o106bobo94bobo96b2o$11bo89b2o8bo97b3o89bo4bobo101b2o99bo98bo
91bo4bobo91bo4bobo197bo106b2o95b2o$110bo195b2o103b2o97bo98bo97b2o97b2o
306bo96bo$110b3o397b3o96b3o$403bo$bobo199bo7b2o188bobo695bo108bo$2b2o
3bo193bobo6b2o190b2o5b3o488bo199b2o2bobo94bobo2b2o101bo$2bo4bobo102b2o
88b2o8bo98b2o96bo102b2o97b2o288b2o2bobo191b2o3b2o96b2o3b2o93bobo2b2o$
7b2o102b2o198bobo96bo100b2o97b2o99b2o98b2o87b2o3b2o105b2o91bo96bo100b
2o3b2o$113bo197bo201bo98bo97b2o98b2o94bo104b2o290bo$712bo99bo200bo88$
413bo199bo286bo99bo$208bo203bo100bo98bo188bo99b2o2bobo93b2o2bobo96bo
108bo95bo$bobo94bobo100bobo2b2o204b3o98bobo96b3o184bobo98b2o3b2o93b2o
3b2o95b2o109bobo91b2o$2b2o7bobo85b2o101b2o3b2o304b2o185bo99b2o104bo99b
o96b2o108b2o93b2o$2bo8b2o86bo102bo104bo393b2o2bobo$12bo294b2o3b2o386b
2o3b2o$299bobo4bobo2b2o393bo5bobo$300b2o11bo86bo99bo211b2o397bo87bo
104bo$11b2o95bo102bo88bo100b2o2bobo93b2o2bobo92bo112bo94bo295bobo2b2o
89b2o2bobo98b2o2bobo$10b2o96b2o3b2o95b2o188b2o3b2o93b2o3b2o94b2o2bobo
200b2o3b2o97b3o190b2o3b2o87b2o3b2o98b2o3b2o$12bo94bobo2b2o96bobo193bo
99bo93b2o3b2o200bobo2b2o98bo99b3o90bo99bo104bo$114bo491bo207bo98bo98bo
$1013bo88$110bo199bo697bo$10bo98bo100bo98bo200bo191bo97bo200bobo2b2o
103bo99bobo97bo$10bobo96b3o98bobo96b3o98bo98bo101bo91b2o2bobo88bobo
201b2o3b2o102bobo97b2o98bobo$10b2o198b2o198bobo96b3o99bobo88b2o3b2o90b
2o101bobo97bo108b2o99bo98b2o$401bobo6b2o89bobo97bobo7b2o95bo194b2o$
402b2o98b2o98b2o299bo$402bo99bo99bo308bo194bobo$9bo99bo98bo701b2o189bo
4b2o99bobo96bobo$2bobo2b2o93bobo2b2o92bobo2b2o101bo498bo94b2o5bobo97b
2o90b2o3bo94bo4b2o92bo4b2o$3b2o3b2o93b2o3b2o92b2o3b2o93bobo2b2o93b2o
98b2o98b2o105b2o97b2o3b2o89b2o104bobo88b2o100b2o3bo93b2o3bo$3bo99bo98b
o100b2o3b2o93b2o98b2o98b2o105b2o95bobo2b2o89bo106bo191b2o97b2o$303bo
98bo99bo99bo106bo104bo89$2bo98bo200bo997bo$obo99b2o196bobo109bo99bo
100bo98bo98bo199bo94bobo101bo90b2o$b2o98b2o103bobo92b2o108bo99bo99b2o
97b2o98bo94bobo102bo90bo4b2o102bobo87b2o$201bo4b2o203b3o97b3o98b2o97b
2o97b3o92b2o103b3o89b2o3bo102b2o$113bo88b2o3bo698bo194b2o$111b2o88b2o
402bobo92bobo$112b2o98bo193bobo96bobo92bo4b2o94b2o4bo92bobo106bobo89bo
bo197bobo$210b2o189bo4b2o92bo4b2o94b2o3bo94bo3b2o94b2o4bo96bo4b2o91b2o
4bo193b2o4bo103b2o$211b2o98b2o89b2o3bo93b2o3bo93b2o104b2o93bo3b2o98b2o
3bo91bo3b2o194bo3b2o99bo3b2o$11b2o98bo194bo3b2o89b2o97b2o304b2o96b2o
101b2o198b2o98b2o4bo$6bo3b2o98b2o194b2o4bo798b3o192bobo$6b2o4bo97bobo
192bobo803bo$5bobo1104bo88$401bo99bo599bo100bo$5bobo102bo99bobo88bo
100b2o98b2o196bobo97bobo198bobo95bobo98bobo$o4b2o103bobo97b2o90b2o97b
2o98b2o198b2o4bo93b2o4bo94bo99b2o4bo91b2o99b2o97bobo$b2o3bo103b2o99bo
89b2o299bo8b2o88bo3b2o94bo3b2o96b2o97bo3b2o97bo100bo94b2o9bo$2o308bobo
290b2o5b2o94b2o98b2o94b2o103b2o95b2o99b2o94bo9bo$310b2o91bo99bo98b2o8b
o491bobo98bobo103b3o$311bo91b2o98b2o407bo$101bobo98bobo197bobo97bobo
399bo5b2o$102b2o4bo94b2o4bo394bo299b2o5b2o395b2o$102bo3b2o95bo3b2o103b
2o97b3o96b3o91b2o205b2o90bobo403b2o$11b3o93b2o99b2o101b2o98bo98bo92bob
o104b3o97b2o198b3o98b3o194bo$11bo301bo98bo98bo198bo101bo197bo100bo100b
2o$12bo698bo299bo100bo98b2o$1213bo87$101bo1100bo$99bobo300bo98bo200bo
99bo98bobo97bobo97bobo99bo95bobo$2bo97b2o301b2o97b2o98bo100b2o98bo98b
2o98b2o98b2o97b3o96b2o$obo102bo96bo10bo98bo89b2o97b2o97bobo99b2o97b3o
98bo99bo99bo197bo$b2o9bo91b2o94bobo9b2o98bobo286b2o8bo199bo94b2o98b2o
203bo$11bo92bobo94b2o9bobo97b2o296bo199bo95bobo97bobo201bo102bo$11b3o
192bo101bo96b3o96b3o103b3o92b3o102b3o93bo99bo103bobo97b3o100bobo$205b
2o93bobo5b2o95bo98bo200bo404b2o201b2o$205bobo93b2o4bobo96bo4b2o92bo5b
2o193bo204bo199bo197bo$8b2o291bo109bobo97bobo93b2o101b3o94b2o101b2o98b
2o94b2o99b2o100b2o$9b2o400bo99bo96b2o100bo97b2o100bobo97bobo92bobo100b
2o98bobo$8bo102b3o493bo103bo95bo202bo96bo99bo$111bo$112bo86$712bo$412b
o187bobo108bo189bo99bo300bo$101bo99bo209bo89bo99b2o108b3o87bo97bobo97b
obo109bo191bo$3bo95bobo97bobo109bo99b3o88b2o97bo197bobo98b2o98b2o108bo
100bo89b3o$4b2o5bo88b2o98b2o108b2o189b2o297b2o103bo99bo104b3o97bo$3b2o
5b2o290bo7bobo492bo98b2o98b2o194bobo7b3o$10bobo290b2o499b2o98bobo97bob
o194b2o$112bo100bo88b2o97bo102b3o105bo88bo102bobo300b2o92bo4b2o96b2o$
6b3o103bobo98bobo183bobo102bo7bo97b2o87bobo406b2o96bobo94b2o$6bo105b2o
99b2o185b2o103bo5b2o98b2o87b2o399bobo3bo98bo98bo$7bo100bo100bo95b3o97b
o105bobo191bo108bo97b2o99b2o87b2o$108b2o99b2o94bo98b2o298b2o107b2o97bo
bo98bobo86bo207b3o$107bobo98bobo95bo97bobo200b3o94bobo106bobo96bo100bo
296bo$609bo701bo$608bo87$11bo400bo99bo$10bo91bo99bo207b2o98b2o199bo90b
o97bobo100bo98bo98bobo$10b3o87bobo97bobo208b2o98b2o88bo108bo89bobo98b
2o101bo95bobo99b2o99bo$101b2o4bo93b2o4bo391bobo108b3o88b2o4bo93bo100b
3o96b2o4bo94bo101bo$bo104b2o98b2o102b3o287b2o4bo199b2o298b2o194b3o4b3o
$2b2o102bobo97bobo93bo7bo294b2o199bobo297bobo200bo$b2o297bobo8bo90bo
202bobo92bobo208bo299bobo96bo$301b2o4bo92bobo99bo198b2o208bobo91b2o3bo
200b2o$306b2o93b2o4bo92bobo198bo4b2o104bo93bo4b2o91b2o3bo103bo92b2o4bo
92b2o$111b2o193bobo97b2o93b2o4bo103b3o92bobo102b2o93b2o98bo2b3o100b2o
91bobo96b2o$3b3o104b2o99b2o193bobo97b2o103bo94bo104bobo91bobo204bobo
92bo98bo$3bo108bo97b2o294bobo103bo$4bo207bo89$bobo108bo87bobo98bobo
198bo98bobo97bo199bobo197bobo97bobo97bobo$2b2o107bo89b2o99b2o96bobo
100bo98b2o98b2o198b2o98bo99b2o98b2o98b2o$2bo108b3o87bo100bo7bo90b2o98b
3o7bo90bo8bo89b2o99bo6b3o90bo4b2o94b2o97bo4b2o93bo4b2o93bo4b2o$309bo
91bo4b2o102bo99bo192b2o4bo97bobo92b2o103bobo97bobo97bobo$309b3o94bobo
101b3o97b3o189b2o6bo96bo199bo99bo99bo$10bobo88bo110bo193bo603bo$10b2o
87bobo110bobo488b3o303bo$5b2o4bo88b2o4bo100bo4b2o489bo208bo91b3o2b3o
99bo$4bobo98b2o100b2o98b2o101b3o95b2o98b2o94bo5b3o91b3o104b2o91bo105b
2o98b2o$6bo98bobo98bobo99b2o100bo98b2o98b2o99bo93bo106bobo91bo104bobo
96b2o99b2o$307bo103bo96bo99bo102bo93bo405bo97b2o$1311bo86$609bo$609bob
o496bo$609b2o402bobo90b2o$11bo783bobo215b2o92b2o$11bobo87bo11bo682b2o
2bobo100bo110bo$11b2o89bo9bo181bobo121bobo75bo299bo3b2o99bobo5bo$3bo
96b3o9b3o102b2o76b2o20b2o77bo21b2o74bobo21bo178bobo101bo100b2o3b2o$4bo
191bo19b2o77bo20b2o76bobo22bo75b2o4bo16bobo177b2o2bobo10bo192b2o91bo
103bo$2b3o189bobo15b2o4bo93b2o4bo76b2o4bo97b2o17b2o178bo3b2o10b2o286bo
103bo$111bo83b2o14bobo97bobo85b2o99b2o201bo10bobo283b3o101b3o$7bo102b
2o101bo99bo86b2o202bo304bo$5b2o103bobo489bobo304b2o93bobo101bobo$6b2o
595b2o4bo207b2o89bobo93b2o102b2o$607b2o207b2o187bo103bo$608b2o208bo!

The next step is to synthesize something to replace the top region. I tried a Herschel minus its first natural glider and found that it almost stabilizes—but in a mostly different way.

Code: Select all

x = 10, y = 15, rule = B3/S23
2b2o3bo$2bo3bo$3b3o2$2b3o$bo3bo$o5bo$o5bo$o5bo$bo3bob3o$2b3o2b3o$8bo$
8bo$7b3o$7b3o!

I chose to focus on that first because of the rare-looking 1 feather motif. synthesise-patt.py provides 195 results.

Code: Select all

x = 14566, y = 32, rule = B3/S23
bo6bo70bo80bobo72bo64bo74bobo6bo65bo74bobo72bo75bo105bo72bo45bo74bo81b
o68bo4bo77bo72bobo65bo78b2o69bo76bobo75bo69bo74bo78b2o74b2o79bo74bobo
75bo59bo13bobo58bo88bo60bo88bobo73bo59bo74bo74bo82bo71bo69bo76bo73bo
74bo74bo75bo77b3o73b2o69bo80bobo64bo76bo80bobo65bo74bo79bo76bo66bobo
82bobo68bo68bo75bo73bobo74bo72bobo90bo57bo84bo64bo86bo74bobo74bo73bo
79bobo75bo66bo76bo72bo75bo75bo76bo74bobo73bobo73bobo73bobo74bo76bobo
63bo79bo76bo77bo69bo54bo74bo74bo74bo74bo74bo78bo70bo74bo74bo74bo74bo
79bo68bo77bo91bobo65bo74bobo74bo73bo79bobo75bo66bo76bo72bo75bo75bo76bo
74bobo73bobo73bobo73bobo74bo76bobo63bo79bo76bo77bo69bo54bo74bo74bo74bo
74bo74bo78bo70bo74bo74bo74bo74bo79bo68bo75bo76bo91bobo70bo63bo67bo75bo
73bo76bo72bobo74bo72bobo72bo89bo75bo75bo59bo88bo74bobo72bo59bo75bo15bo
75bo73bo57bo74bo75bo73bo75bo73bo73bobo92bo55bo75bo94bo52bobo96bo52bo
73bo84bo63bobo79bo74bo74bo74bo69bo74bo94bo58bo$2bo4bo72bo73bo5b2o73bob
o63b2o73b2o7bo65b2o73b2o73b2o74bo105bo72bo45bo74bo6bobo72bo68bo3bobo
75bobo70b2o67bo73bo3bobo69bo76b2o76bo69bo74bo73bo3bobo69bo3bobo76b2o
75b2o61bo13bo61b2o11b2o60b2o84b2o62b2o86b2o73bo61b2o73b2o73b2o81bo71bo
68bobo72bobo74bo74bo74bo72bobo74bo2bo71bo3bobo69bo73bo5b2o66b2o75bo79b
2o67bo74bo79bo74bo68b2o82b2o70b2o67b2o74bo73b2o72b2o74b2o91bo57bo83bob
o63bo7bo76bo75b2o73b2o74bobo77b2o74b2o66bo75b2o74bo75bo74bobo72b2o75b
2o74b2o74b2o74b2o73b2o77b2o63bo80bobo74bobo73b2o68b2o56bo74bo74bo74bo
74bo74bo73bo4b2o69bo74bo74bo74bo74bo78bobo67b2o73b2o92b2o65bo75b2o73b
2o74bobo77b2o74b2o66bo75b2o74bo75bo74bobo72b2o75b2o74b2o74b2o74b2o73b
2o77b2o63bo80bobo74bobo73b2o68b2o56bo74bo74bo74bo74bo74bo73bo4b2o69bo
74bo74bo74bo74bo78bobo67b2o74bo73b2o92b2o72bo63bo67b2o74bo73b2o72bobo
73b2o72bobo73b2o73b2o87bobo72bo74b2o58bobo88bobo72b2o73bobo58bo72bobo
16bo73bo74bobo56bo74bo72bobo74bo72bobo74bo73b2o92bobo54bo72bobo93bo54b
2o94b2o51bobo74bo84bo63b2o80bo74bo74bo74bo69bo74bo91b2o57b2o$3o4b3o68b
3o74bo5bo73b2o63b2o74bo6b3o64b2o74bo73b2o73b3o103b3o70b3o43b3o72b3o6b
2o71b3o66b3o3b2o76b2o72bo65b3o74bo2bo69b3o76bo75b3o67b3o5bo66b3o74bo2b
o72bo2bo68bo10b2o75bo62b2o11b3o58b2o13bo59b2o13bo72b2o60b2o88bo73b3o
58b2o73b2o73b2o73b2o5b3o69b3o68b2o74b2o72b3o72b3o72b3o73b2o75bo2bo71bo
2bo69b3o74bo5bo65b2o74b3o72bo7bo65b3o72b3o73bo3b3o74b3o66bo84bo69b2o
67b2o73b3o73bo74b2o73bo90b3o55b3o83b2o62b3o8bo75b3o74bo74b2o73b2o79bo
75b2o65b3o74b2o71b3o73b3o74b2o74b2o75bo75bo75bo75bo74b2o77bo63b3o78b2o
75b2o75b2o68b2o53b3o72b3o72b3o72b3o72b3o72b3o74bo2b2o68b3o72b3o72b3o
72b3o72b3o73bo4b2o67b2o75b2o92bo65b3o74bo74b2o73b2o79bo75b2o65b3o74b2o
71b3o73b3o74b2o74b2o75bo75bo75bo75bo74b2o77bo63b3o78b2o75b2o75b2o68b2o
53b3o72b3o72b3o72b3o72b3o72b3o74bo2b2o68b3o72b3o72b3o72b3o72b3o73bo4b
2o67b2o73b3o74b2o92bo70b3o61b3o66b2o73b3o72b2o74b2o73bo74b2o73bo73b2o
88b2o73b3o73b2o58b2o88b2o74bo73b2o57b3o73b2o14b3o73b3o72b2o55b3o72b3o
73b2o72b3o73b2o72b3o73bo93b2o53b3o73b2o93b3o52bo96b2o51b2o72b3o73b2o7b
3o63bo79b3o72b3o72b3o72b3o67b3o72b3o92b2o57b2o$153b3o829bo439b3o77bo
70bo157bo140b3o73b3o72b2o147b2o78bo74bo8b2o59bo79bo8b3o213bo74bo145b2o
598b3o72b3o147b3o223bo224bo981b3o2238b3o449bo2472b3o449bo3072bobo614bo
58bo$85b2o823bo290bo303b2o70bo154b3o71bo218b2o3bo69bo79bo74b2o73b2o7bo
bo59b2o77b2o7bo60bo74bo79b2o73b2o143bo453b3o74bo373bo144b3o222b3o308bo
68bo148bo371bo2773b3o2922b3o154bo2919bo84bo530bo58bo$75b2o8bobo296b2o
289b2o104b2o71b2o44b2o7b2o64b2o225bo150bobo148bobo68b3o80b2o141bo3b2o
223b2o69b2o77b2o72bobo72bobo68b2o77bobo8bo60b2o73b2o76bobo72bobo152b3o
69b3o68bo80bo69b2o73b2o76bo75bo218b2o153bo69bo3b2o146bo152b2o301b2o67b
2o72b2o76b2o236b3o55b3o73bo761bo75bo1035bo74bo74bo74bo74bo74bo149bo74b
o74bo74bo74bo988bo75bo1035bo74bo74bo74bo74bo74bo149bo74bo74bo74bo74bo
224bo3b2o233b2o62b2o1284b2o1341b2o77bo62bo3b2o68bo4b2o73b2o73b2o68b2o
73b2o89b3o56b3o$2b3o71b2o7bo64b2o233b2o289b2o104b2o71b2o44b2o6bobo64b
2o73b2o3b3o66b3o72b3o150b2o70b2o223b3o5bobo139b2o3bobo68bo74bo77bobo
68b2o3bo73bobo223bo144b2o73b2o87b3o73bo145bo71bo69bo80bo69b2o73b2o74bo
74b3o68b2o73b2o72bobo6bo66b2o76b3o70bob2o146b2o152bobo146bo70bo83b2o
67b2o72b2o74b2o239bo57bo71b3o82b3o676b2o74b2o1034b2o73b2o73b2o73b2o73b
2o73b2o73bo74b2o73b2o73b2o73b2o73b2o986b2o74b2o1034b2o73b2o73b2o73b2o
73b2o73b2o74bo73b2o73b2o73b2o73b2o73b2o223b2o3bobo232bobo61bobo1283bob
o1340bobo74b3o63bo2bobo68b2o2bobo67b3o2bobo67b2o3bobo67bobo72bobo161bo
$4bo70bo75b2o231bo290bo105bo72bo45bo74bo74bobo3bo68bo150bo77bo70bobo
81bo142bo5bo71b2o68bobo72b2o74b2o152b2o298b2o148bo74bo83bo74b2o144bo
71bo68b3o78b3o68bo4b3o67bo4bobo214bobo72bobo74bo5b2o65bobo147b3o3bo72b
2o71bobo151bo149bo70bo224bo81bo66bo167bo57bo159bo675bobo73bobo1033bobo
72bobo72bobo72bobo72bobo72bobo73b2o72bobo72bobo72bobo72bobo72bobo73bo
912bobo73bobo1033bobo72bobo72bobo72bobo72bobo72bobo72b2o73bobo72bobo
72bobo72bobo72bobo73bo148bobo237bo63bo1285bo1342bo140b3o2bo69b2o3bo71b
o2bo70b2o2bo69bo74bo162b2o$3bo146bo901bo4bo68bo150bo147bo82b2o67b2o72b
o79b2o142bobo72bobo151bobo297bobo148b2o73b2o83bo73bobo441bo74b2o72b2o
143bo74bo80bobo66bo225b2o77b2o295b3o68b3o227b3o75b2o67b2o382bo2238bobo
448b2o76bo71bo2324bobo447b2o76bo146bo3149bo73bo312bobo$463bo739b2o70b
3o230bobo65b2o152bo823bobo72bobo368b3o231bo74bo71b2o74bo373b2o147bo76b
obo71bo144bo378bo77bobo65b2o298b3o2771bobo77bo71bo73bo2699bobo76bo146b
o73bo2858b2o$226bo237bo737bobo373bo1423bo75b3o78b3o221bo73b2o371bobo
224bo74bo144bo81bo70bo225bo149bo296bo147bo74bo74bo74bo74bo74bo2326b3o
69b3o74bo73bo74bo74bo74bo74bo74bo2326b3o144b3o74bo73b2o73bo2708bobo$
227bo234b3o739bo1796bo78bo80bo294bobo373bo297b3o142b3o79b2o69b2o375b2o
90bo204bo149bo74bo74bo74bo74bo74bo73bo74bo74b2o73bo2173b3o74bo74bo74bo
74bo74bo74bo73bo74bo74b2o73bo2248b3o72bobo72b2o92bo2615bo$225b3o83bo
966b2o1799bo80bo1197b2o69b2o374bobo90bo130b2o219b3o72b3o72b3o72b3o72b
3o72b3o74bo74bo72bobo73b2o73bo2173b3o72b3o72b3o72b3o72b3o72b3o74bo74bo
72bobo73b2o73bo2250bo72bobo92bo74bo74bo74bo74bo$312bo964bobo3616b3o
129b2o670b3o72b3o74bo72bobo74bo73bo1877bo71bo598b3o72b3o74bo72bobo74bo
73bo1878bo146bo315b3o75bo74bo74bo74bo74bo$310b3o150b2o814bo2851b2o143b
2o752bo969b3o74bo73bo74bo74bo74bo74bo74bo1427b2o70b2o73bo823b3o74bo73b
o74bo74bo74bo74bo74bo1427b2o145b2o74bo316b3o72b3o72b3o72b3o75bo74bo76b
o$226b2o236b2o897b2o2766bobo142bobo972bo74bo74bo74bo74bo74bo448b3o74bo
74bo74bo74bo74bo74bo73bo74bo74bo74bo1126bobo69bobo73b2o74bo74bo74bo74b
o74bo74bo447b3o74bo74bo74bo74bo74bo74bo73bo74bo74bo74bo1127bobo144bobo
72b2o617b3o75bo76bo51bo245bo$227b2o234bo898b2o2767bo144bo620b3o351b2o
73b2o73b2o73b2o73b2o73b2o73bo74bo373b3o72b3o72b3o72b3o72b3o72b3o74bo
74bo74bo74bo73bo1198bobo73b2o73b2o73b2o73b2o73b2o73b2o74bo74bo372b3o
72b3o72b3o72b3o72b3o72b3o74bo74bo74bo74bo73bo1274bobo238b2o452b3o74b3o
52bo245bo52bo74bo$226bo84b2o1051bo3135b2o82b2o313bo350bobo72bobo72bobo
72bobo72bobo72bobo73b2o73b2o223bo598b3o72b3o72b3o72b3o74bo89b2o76bo
1105bobo72bobo72bobo72bobo72bobo72bobo72b2o73b2o224bo597b3o72b3o72b3o
72b3o74bo89b2o76bo1346bobo73b2o73b2o73b2o73b2o281b3o243b3o53bo74bo170b
o$312b2o4187b2o80b2o313bo801bobo72bobo223b2o73bo823b3o88b2o76b2o72b2o
73b2o74b3o73b2o1254bobo72bobo222b2o74bo822b3o88b2o76b2o72b2o73b2o74b3o
73b2o1045bo75bobo72bobo72bobo72bobo73b2o281bo74bo148b3o72b3o73bo97bo
294bo78bo76bo$311bo232bo2316bo1638bo84bo1414bobo73b2o73bo74bo74bo74bo
74bo74bo466bo75bobo70b2o74bobo73bo74b2o1555bobo72b2o74bo74bo74bo74bo
74bo74bo465bo75bobo70b2o74bobo73bo74b2o1122bo74bo74bo74bo75bobo73b2o
75b2o129bo74bo299bo94b3o126bo168bo78bo76bo66bo75bo78bo75bo1109bo$545bo
2316bo3212bobo73b2o73b2o73b2o73b2o73b2o73b2o73bo74bo74bo74bo317bo73bo
76bo75bo149bo75b2o1402bobo72b2o73b2o73b2o73b2o73b2o73b2o74bo74bo74bo
74bo316bo73bo76bo75bo149bo75b2o1195bo75bobo74bobo50b2o74b3o72b3o92b2o
203b3o224bo73bo91b3o76b3o74b3o67bo75bo78bo75bo50bo96bo74bo884b2o139b3o
$543b3o2314b3o2088b2o1197bobo72bobo72bobo72bobo72bobo72bobo73b2o73b2o
73b2o73b2o73bo618b2o74b2o1478bobo72bobo72bobo72bobo72bobo72bobo72b2o
73b2o73b2o73b2o74bo617b2o74b2o1272bo76bo52bobo243bobo51b2o73b2o299b3o
74bo314b3o73b3o76b3o73b3o51bo96bo74bo149bo733bobo72b3o65bo$623bo4326bo
bo1647bobo72bobo72bobo72bobo73b2o617bobo75bo73b2o1852bobo72bobo72bobo
72bobo72b2o617bobo75bo73b2o1326bo245bo53bobo72bobo169b2o202b3o597b3o
94b3o72b3o150bo807bo66bo$624bo4327bo1947bobo768b2o78bo2074bobo767b2o
78bo1323b2o73b2o148bo74bo74b2o95bobo293b2o77b2o75b2o673b3o148bo659bo$
543b2o77b3o2237b3o4808bo76b2o2846bo76b2o1323bobo72bobo297bobo94bo127b
2o166bobo76bobo74bobo65b2o74b2o77b2o74b2o277bo149bo98bo72bo$544b2o
2318bo4885bobo72b3o2847bobo72b3o1247bo74bo299bo224bobo72b2o91bo78bo76b
o67bobo73bobo76bobo73bobo49b2o95b2o73b2o54bo149bo95b3o73bo$543bo207bo
2111bo4961bo2924bo1849bo74bobo314bo75bo78bo75bo51bobo94bobo72bobo51b3o
94b2o51b3o169b3o$622b2o127b2o7073bo2924bo1923bo599bo96bo74bo150bobo$
623b2o72b3o50bobo12845bo149b2o$622bo74bo128bo12673b2o148b2o96bobo71b2o
$698bo127b2o12672bobo147bobo95bo73bobo$825bobo12672bo149bo171bo!

Here is one suitable pair of syntheses:

Code: Select all

x = 21, y = 25, rule = B3/S23
o$b2o13bo$2o14bobo$16b2o8$3b3o$5bo$4bo3$4b2o$3bobo8bo$5bo7b2o$13bobo3$
19bo$18b2o$18bobo!

These are several ways to stabilize the bottom part.

Code: Select all

x = 230, y = 40, rule = B3/S23
o105bo96bo$b2o13bo90b2o13bo81b2o13bo$2o14bobo87b2o14bobo78b2o14bobo$16b
2o104b2o95b2o8$3b3o103b3o94b3o$5bo105bo96bo$4bo105bo96bo3$4b2o104b2o95b
2o$3bobo8bo94bobo8bo85bobo8bo$5bo7b2o96bo7b2o87bo7b2o$13bobo103bobo94b
obo3$19bo105bo96bo$18b2o104b2o95b2o$18bobo103bobo94bobo9$4b2o97bo17b2o
86b2o17bo$3bobo97b2o15b2o88b2o15b2o$5bo96bobo17bo6bo72bo6bo17bobo$128b
2o72b2o$20b2o106bobo70bobo$20bobo$20bo!

However, I haven't figured out how to stabilize the top right part yet.

[Freywa]

Can you synthesise this?

Code: Select all

x = 27, y = 25, rule = B3/S23
10b2o3b2o$10bo5bo$2o2b2ob2obo5bob2ob2o2b2o$o2bobobobo7bobobobo2bo$bobo
3bo11bo3bobo$2ob2o2b2o9b2o2b2ob2o3$11b2o$11bobo$12bo3$10bo$8b2o$10b2o$
9bo3$2ob2o2b2o9b2o2b2ob2o$bobo3bo11bo3bobo$o2bobobobo7bobobobo2bo$2o2b
2ob2obo5bob2ob2o2b2o$10bo5bo$10b2o3b2o!

[ColorfulGabrielsp138]

This thread is for synthesizing pseudo still lives with 18 or less cells.
To start with, here is an example:

Code: Select all

x = 5, y = 5, rule = B3/S23
bo9bo$2bo7bo$3o7b3o10$3o7b3o$2bo7bo$bo9bo! -- 17x1 rectangle ash

EDIT: 138th post
EDIT 2: Try to prove that all pseudo still lives with 18 or less cells can be synthesized with 2 or less (or even 1) glider per bit.

[Sokwe]

I don't think we need a separate thread for pseudo still lifes. Just use the still life synthesis thread.